#ifndef __MGFCRITICALSECTION_H__
#define __MGFCRITICALSECTION_H__

//-----------------------------------------------------------------------------
// Copyright (c) 2009, Jan Fietz, Cyrus Preuss
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification, 
// are permitted provided that the following conditions are met:
// 
// * Redistributions of source code must retain the above copyright notice, 
//   this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice, 
//   this list of conditions and the following disclaimer in the documentation 
//   and/or other materials provided with the distribution.
// * Neither the name of RockNet nor the names of its contributors
//   may be used to endorse or promote products derived from this software
//   without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
// IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
// EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//-----------------------------------------------------------------------------

#include <mgf/core/os/Windows.h>

//-----------------------------------------------------------------------------
namespace mgf
{
	//-----------------------------------------------------------------------------
	class CriticalSection
	{
	public:
		CriticalSection() throw();

		~CriticalSection();

		void lock( void ) throw();

		void unlock( void ) throw();

	private:
#if defined(WIN32) || defined(_WIN32)
		CRITICAL_SECTION m_kCriticalSection;
#   else
		pthread_mutex_t m_pmutex;
#   endif

	};

#pragma	warning ( push )
#pragma warning ( disable : 4512 ) // 'ScopeCS' : assignment operator could not be generated
	//-----------------------------------------------------------------------------
	class ScopeCS
	{
	public:
		ScopeCS( CriticalSection& kCS ) throw()
			: m_kCS(kCS)
		{
			kCS.lock();
		}

		virtual ~ScopeCS()
		{
			m_kCS.unlock();
		}
	private:
		static CriticalSection ms_kCS;
		ScopeCS(): m_kCS(ms_kCS) {}
		CriticalSection& m_kCS;
	};
	//-----------------------------------------------------------------------------
#pragma	warning ( pop )
}

#endif // __MGFCRITICALSECTION_H__